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Javier Villegas

@javiervillegas1

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AI Engineer at VYNX who built METIS, an agent orchestration platform with live chat testing and tool invocation logs.

Peru

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At VYNX, I designed and built METIS, an agent orchestration playground with live prompt configuration, tool selection, and a chat sandbox for testing streaming responses.

For Aicredito, I architected a credit management platform and conversational agent, including a custom MCP server that qualified prospects and saved records to the database. I also developed document pipelines that generated contracts and credit reports from verified applicant data.

My other work includes a real-time voice agent, a RAG service for compliance and policy records, and an ERP platform for retail and distribution. On the ERP project, I deployed the solution with Docker and reduced manual inventory reconciliation time by 45%.

Experience

Work history, roles, and key accomplishments

AI Engineer – Agent Configuration & Orchestration Platform (METIS)

VYNX

Feb 2026 - Sep 2026 (7 months)

Designed and built an end-to-end agent orchestration playground using Next.js, TypeScript, and Tailwind CSS, with Clerk-based authentication and multi-tenant session isolation. Engineered interface modules for real-time system prompt configuration and tool selection, backed by PostgreSQL schemas, and built an interactive chat testing sandbox with live streaming responses.

Next.js TypeScript Tailwind Clerk JWT PostgreSQL Server Sent Events Agent orchestration

AI Engineer – Real-Time Voice Conversational Agent

VYNX

Jan 2026 - Feb 2026 (1 month)

Built a real-time voice agent streaming raw PCM audio over WebSocket to the Gemini Live API, using a native audio-to-audio model. Implemented browser audio pipeline with AudioWorklets for PCM16 conversion and resampling, and a queued playback path with barge-in support.

WebSockets AudioWorklet PCM16 Gemini Live API Real Time Voice Barge In

Frontend Engineer & AI Engineer

MTS

Jul 2025 - Jan 2026 (6 months)

Architected and deployed specialized AI agents for enterprise clients using LangGraph, integrating custom MCP servers and tools. Developed dynamic client views and frontend modules for a CRM platform, integrating RESTful APIs, global state management, and real-time data synchronization.

LangGraph Model Context Protocol REST APIs State Management Real Time Data Sync CRM

AI Engineer – Semantic Document Q&A System (RAG)

VYNX

Nov 2025 - Dec 2025 (1 month)

Built a Retrieval-Augmented Generation service using Python and FastAPI for semantic search over 5,000+ internal compliance and policy records. Engineered cosine-similarity top-k context retrieval with metadata filtering to inject relevant document excerpts into LLM prompts.

Python fastAPI RAG Qdrant OpenAI Embeddings Cosine Similarity Data filtering

Software Engineer – Custom Business ERP Platform

Freelance / Independent Contractor

Nov 2024 - Mar 2025 (4 months)

Architected and developed a modular full-stack ERP web platform for a retail and distribution client, centralizing multi-branch inventory, sales, and supplier orders. Engineered a high-performance RESTful API with FastAPI and PostgreSQL, and built a role-based dashboard with Next.js, TypeScript, and Tailwind CSS, containerized with Docker.